//:C02:exec_2_5.c
#include <stdio.h>

int main(void)
{
    int toes = 10;
    int sum1 = toes + toes;
    int square1 = toes * toes;
    printf("toes = %d, sum1 = %d, square1 = %d\n", toes, sum1, square1);
}